Ned Lamont, has invested another $8.2 million into his Democratic campaign for governor, according to the latest filings with state election regulations that show he has poured a total of more than $12.7 million of his personal wealth into the bid.

The quarterly report, filed just before the deadline late Wednesday, indicates that Lamont, a former cable TV executive turned investor, has $5.5 million available for the last month of the campaign. He wrote personal checks for $3.6 million on September 4, followed by $4.6 million on Friday, September 28.

In total, Lamont has raised $12,753.745. In the quarter - July, August and September - Lamont’s campaign received more than $258,000 from individual contributors.

His Republican opponent, Bob Stefanowski of Madison, raised $1.5 million during the quarter, for a campaign total of $5 million. He has paid out nearly $4.3 million, with only $747,520 available for the last month of the campaign. During the quarter, Stefanowski raised a million dollars from individual contributors.

While his public appearances on the campaign have been very few outside of a few debates and small forums, Stefanowski’s filings indicates a daily attempt over the last three months to raise money. Running outside the state’s voluntary public-finance program, Stefanowski got on TV in January with a series of ads that raised his name recognition and won him the GOP primary in August.

The campaign-finance filings indicate that he has been scrambling for cash. He has held at least 22 fundraising events throughout the state, including three in Greenwich, including one at the exclusive Belle Haven Club, which the campaign rented for nearly $2,000. Another fundraising luncheon was held on Central Park South in New York.

Stefanowski also loaned his campaign an additional $400,000, bringing the total to $2.65 million in personal funds for which the business consultant and former corporate executive is eligible to seek reimbursement.

Lamont’s contributions to his campaign, however, are not re-imbursable.

Oz Griebel, the unaffiliated candidate for governor who is recent days began a radio-advertising effort, has loaned his campaign an additional $76,000, according to the latest quarterly reports Wednesday posted by the State Elections Enforcement Commission.

Griebel, the former director of the MetroHartford Alliance, wrote five checks totaling the $76,000, including $30,000 on July 31. Most recently, Griebel, who on Wednesday was shown to have 11 percent support among voters in the latest Quinnipiac University Poll, wrote a $15,000 check on September 28.

During the campaign, Griebel has loaned his effort $143,500 of the total $387,000 raised. It’s a fraction of what Lamont and Stefanowski have invested. With less than a month before the election, Griebel has $39,000 left, the report indicates.